Re: [PATCH 2/7] mm: introduce local state for lazy_mmu sections

[Yeoreum Yun <yeoreum.yun@arm.com>]

Hi Kevin,

[...]
> Signed-off-by: Kevin Brodsky <kevin.brodsky@arm.com>
> ---
>  arch/arm64/include/asm/pgtable.h              | 10 +++++++---
>  .../include/asm/book3s/64/tlbflush-hash.h     |  9 ++++++---
>  arch/powerpc/mm/book3s64/hash_tlb.c           | 10 ++++++----
>  arch/powerpc/mm/book3s64/subpage_prot.c       |  5 +++--
>  arch/sparc/include/asm/tlbflush_64.h          |  5 +++--
>  arch/sparc/mm/tlb.c                           |  6 ++++--
>  arch/x86/include/asm/paravirt.h               |  6 ++++--
>  arch/x86/include/asm/paravirt_types.h         |  2 ++
>  arch/x86/xen/enlighten_pv.c                   |  2 +-
>  arch/x86/xen/mmu_pv.c                         |  2 +-
>  fs/proc/task_mmu.c                            |  5 +++--
>  include/linux/mm_types.h                      |  3 +++
>  include/linux/pgtable.h                       |  6 ++++--
>  mm/madvise.c                                  | 20 ++++++++++---------
>  mm/memory.c                                   | 20 +++++++++++--------
>  mm/migrate_device.c                           |  5 +++--
>  mm/mprotect.c                                 |  5 +++--
>  mm/mremap.c                                   |  5 +++--
>  mm/vmalloc.c                                  | 15 ++++++++------
>  mm/vmscan.c                                   | 15 ++++++++------
>  20 files changed, 97 insertions(+), 59 deletions(-)

I think you miss the mm/kasan/shadow.c

But here, the usage is like:

static int kasan_populate_vmalloc_pte()
{
	...
	arch_leave_lazy_mmu_mode();
	...
	arch_enter_lazy_mmu_mode();
	...
}

Might be you can call the arch_leave_lazy_mmu_mode() with LAZY_MMU_DEFAULT
in here since I think kasan_populate_vmalloc_pte() wouldn't be called
nestly.

[...]

Thanks.

--
Sincerely,
Yeoreum Yun